This part of IEC 60401 presents a method for defining the designation nomenclature for the major physical attributes of soft ferrite core shapes. The purpose of this standard is to facilitate uniform usage of dimensional characters by manufacturers, specifiers, and users when describing core dimensions on drawings, in tables, and on catalogue specification sheets.
GSO IEC 60401-2:2014 history
2014GSO IEC 60401-2:2014 Terms and nomenclature for cores made of magnetically soft ferrites - Part 2: Reference of dimensions